EP2590610B1 - Person support systems, devices, and methods - Google Patents
Person support systems, devices, and methods Download PDFInfo
- Publication number
- EP2590610B1 EP2590610B1 EP11804417.1A EP11804417A EP2590610B1 EP 2590610 B1 EP2590610 B1 EP 2590610B1 EP 11804417 A EP11804417 A EP 11804417A EP 2590610 B1 EP2590610 B1 EP 2590610B1
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- EP
- European Patent Office
- Prior art keywords
- frame
- deck
- framework
- panel
- deck framework
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000033001 locomotion Effects 0.000 claims description 25
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 230000004044 response Effects 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 244000309466 calf Species 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/002—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame
- A61G7/015—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame divided into different adjustable sections, e.g. for Gatch position
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/05—Parts, details or accessories of beds
- A61G7/0503—Holders, support devices for receptacles, e.g. for drainage or urine bags
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G1/00—Stretchers
- A61G1/04—Parts, details or accessories, e.g. head-, foot-, or like rests specially adapted for stretchers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G13/00—Operating tables; Auxiliary appliances therefor
- A61G13/10—Parts, details or accessories
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G2203/00—General characteristics of devices
- A61G2203/70—General characteristics of devices with special adaptations, e.g. for safety or comfort
- A61G2203/72—General characteristics of devices with special adaptations, e.g. for safety or comfort for collision prevention
- A61G2203/723—Impact absorbing means, e.g. bumpers or airbags
Definitions
- articulable supports such as hospital beds
- a support having a deck framework, a deck panel connected to the framework and a motion converter for coordinating a translational motion of the panel with rotation and/or longitudinal translation of the framework.
- the teachings of the earlier application are presented in the context of a bed having three actuators for controlling motions of the upper body section.
- One of these actuators controls the parallel translation.
- the other two are operated to rotate the upper body section while concurrently translating it longitudinally, to rotate the upper body section without imparting any longitudinal translation, or to translate the upper body section longitudinally without imparting any rotation.
- beds produced for commercial sale will include fewer actuators for the upper body section.
- the application also describes a bed with a simplified kinematic configuration having a single upper body section actuator and a dual rack and pinion. In operation the actuator extends or retracts to translate the upper body section longitudinally while changing its angular orientation. At the same time the dual rack and pinion effects the desired parallel translation of the upper body deck panel in response to the translation and orientation of the upper body section.
- EP 2186497 filed on November 9, 2009 and entitled "Anthropometrically Governed Occupant Support” describes an articulable support, such as a hospital bed, whose articulation depends at least in part on anthropometric considerations.
- the application discloses a mode of operation in which rotation of a bed upper body section is accompanied by longitudinal translation of the upper body section and "parallel translation" of an upper body deck panel.
- the application defines parallel translation as translation of the deck panel in a direction parallel to the existing angular orientation of the upper body section.
- FIGS. 1-3 show a hospital bed 10 extending longitudinally from a head end 12 to a foot end 14 and laterally from a left side 16 to a right side 18.
- FIGS. 1-2 also show a longitudinally extending centerline 22.
- the bed structure includes a base frame 26 and an elevatable frame 28 connected to the base frame by folding links 30.
- the bed also includes four deck sections: upper body section 34, seat section 36, thigh section 38 and calf section 40, all connected to the elevatable frame.
- the upper body deck section 34 includes a framework 50 comprising left and right hollow rails 52, 54 joined to each other by an upper beam 56 and a lower beam 58.
- First and second rail slots 60, 62 penetrate through and extend part way along the top of each rail.
- each rail also includes a two sided mounting bracket 64.
- the framework 50 is moveably connected to elevatable frame 28 so that the framework is longitudinally translatable relative to the elevatable frame and is also rotatable about pivot axis 70.
- Deck section 34 also includes a deck panel 72 (shown in phantom) moveably connected to the framework 50.
- panel 72 is translatable relative to the framework in directions P1, P2 parallel to the angular orientation ⁇ of the framework.
- the bed also includes a pair of compression links 74 each having a frame end 76 pivotably connected to the elevatable frame at a frame joint 78 and a deck end 82 pivotably connected to the deck framework at a deck joint 84.
- frame joint 78 is not translatable relative to the frame, however in an alternate embodiment ( FIG. 15 ) joint 78 is longitudinally translatable relative to the frame.
- the bed also includes a drive system which includes an actuator 90 having a deck end 92 connected to upper body deck framework 50 and a grounded end 94 connected to a suitable mechanical ground, such as elevatable frame 28.
- the drive system also includes a motion converter, indicated generally by reference numeral 100, for translating panel 72 relative to the deck framework in response to at least one of: a) relative translation between the deck framework and the frame, and b) relative rotation of the deck framework and the frame about axis 70.
- the illustrated embodiment includes both left and right motion converter units 100L, 100R. The units are mirror images of each other, hence it will suffice to describe only one of the units in more depth.
- FIGS. 4-8 show components and construction of one of the motion converter units in more detail.
- the motion converter includes a gear rack 102 affixed to elevatable frame 28.
- the gear rack may be considered to be a part of the elevatable frame.
- the illustrated rack comprises a single piece slide rail 104 screwed to the frame and a rack plate 106 screwed to pedestals 108 at each end of the slide rail.
- a slot 110 extends along the slide rail between the pedestals.
- the slide rail has laterally inboard and outboard sides 112, 114 each with a shoulder 116.
- the rack plate includes openings 120 for receiving a gear tooth. The openings have a profile that conforms to the profile of the gear teeth.
- the motion converter also includes a primary gear 124 in mesh with the rack plate.
- the gear has a stub shaft 126 extending laterally away from bed centerline 22.
- a pair of lugs 128 projects laterally from the shaft.
- a split gear housing 130 has a rectangularly shaped opening 132 extending through its base 134, a cavity 136 inside the base and a tail 138 projecting from the base. The tail nests snugly in slide rail slot 110, and the opening 132 embraces and fits snugly around rack plate 106.
- An internal plate 140 resides in the cavity. Screws 142 extend through a bearing plate 144 and a backing plate 146 and into the internal plate 140 to slidingly clamp the housing to the slide rail with the bearing plate abutting rail shoulder 116.
- the primary gear is rotatably mounted inside gear housing 130 by way of inboard and outboard gear bushings 154, 156 and a laterally extending pivot axle 158.
- the pivot axle also extends through holes 162 in the rail mounting bracket 64 to connect the primary gear to the deck framework. Bearings 164 nest in the holes 162 and circumscribe pivot axle 158.
- the motion converter also includes a deck panel rotary drive element such as a panel drive sprocket 170.
- the sprocket resides inside a chain housing 172 located adjacent to and outboard of the gear housing 130.
- the sprocket is rotatably mounted on pivot axle 158 by way of outboard gear bushing 156.
- the sprocket has a stub shaft 174 extending laterally toward bed centerline 22. Notches 176 at the inboard tip of the stub shaft mate with lugs 128 on the primary gear stub shaft to rotatably connect the sprocket to the primary gear.
- the sprocket and the primary gear are thus coaxial and mutually corotatable.
- the pitch diameters of the primary gear and the sprocket are 37.0 and 42.6 mm respectively. Accordingly, the primary gear and sprocket exhibit a non-unity drive ratio, specifically a drive ratio of about 1.15.
- the chain housing 172 extends into the hollow interior of the framework (i.e. into rail 52).
- the chain housing includes an internal track or ledge 182, a shoulder 184, and an elongated slot 186 that registers with first slot 60 in the framework rail.
- An idler sprocket 192 is rotatably mounted inside the chain housing at its remote end 194. Because the chain housing is stationary with respect to the deck framework 50, the idler can be considered to be mounted on the framework.
- a slider 200 includes a slide link 202 translatably supported on housing internal track 182, and a slide block 204 bolted to the slide link.
- the slide link has a ledge 206 that abuts chain housing shoulder 184 to trap the slide link in the chain housing 172.
- the slide block includes a head portion 208 that overlies the top of framework rail 50 on either side of first rail slot 60 and a neck portion 210 that projects through the rail slot and extends to the slide link.
- the slider also includes a drive lug 218 projecting from the slide block. The drive lug is connected to deck panel 72, thereby connecting the slider to the panel.
- a second slider 212 comprises a second slide block 214 having a head portion 226 and a neck portion 228.
- the second slider also includes a retainer plate 230.
- Head portion 226 of slide block 214 overlies the top of framework rail 52 on either side of second rail slot 62.
- Neck portion 228 projects through rail slot 62 and extends to the retainer plate.
- the slide block and retainer plate are bolted together so that the lateral sides of the retainer plate reside under the interior of framework rail 52 on either side of second rail slot 62 and so that the slider can slide longitudinally along the length of the slot.
- a drive lug 218 is connected to deck panel 72, thereby connecting the slider to the panel.
- a roller chain 220 loops around each sprocket 170, 192 and engages with the sprocket teeth.
- the ends of the chain are connected to opposite ends of the slide link 202, thereby also connecting the chain to the deck panel 72.
- the chain is a linear or translatable drive element insofar as the part of the chain that extends linearly between the sprockets translates in direction P1 or P2 during operation of the drive system.
- Other kinematically equivalent devices could be used in lieu of roller chain 220.
- a lift chain one example of which is seen in FIG. 13 , could serve as a translatable drive element.
- the primary gear is operatively connected to the deck panel 72.
- actuator 90 extends and pushes framework beam 58 longitudinally toward the head end 12 of the bed.
- the compression link 74 rotates clockwise to change the angular orientation ⁇ of the upper body deck framework.
- the longitudinal translation of the framework relative to the elevatable frame causes primary gear 124 to rotate in a clockwise direction as seen in FIGS. 5 , 8 , 9 and 10 .
- the primary gear drives the panel drive sprocket 170 in the same rotational sense.
- the sprocket drives the chain which acts on slider 200 to translate deck panel 72 in direction P1 relative to deck framework 50. Retraction of the actuator reverses the above described motion to translate the deck panel in direction P2.
- the kinematic interaction between the gear rack 102 and the primary gear 124 serves as a means for converting the relative translation and/or rotation between the deck framework and the elevatable frame to a rotary motion of primary gear 124.
- the kinematic interaction between sprocket 170 and chain 220 serves as a means for converting the rotary motion to a translational motion.
- the slider 200 and lug 218 serve as a means for conveying the translational motion of the chain to the panel.
- FIG. 14 is a simple schematic view showing the kinematic relationship of the actuator 90, elevatable frame 28, deck framework 50 and compression link 74 of the above described bed structure.
- Joint 78 is non-translatable relative to frame 28.
- operation of actuator 90 causes deck panel 72 to translate longitudinally relative to the elevatable frame by a distance D and to rotate relative to the elevatable frame through an angle ⁇ .
- joint 78 is longitudinally translatable relative to the frame by the action of second actuator 222.
- deck framework 50 can be translated longitudinally relative to the elevatable frame 28 without any rotation of the framework ( FIG.
- FIG. 15B rotated relative to the elevatable frame without any translation ( FIG. 15C ) or rotated and translated as in the first embodiment ( FIG. 15D ).
- second actuator 222 introduces additional complexity, it also introduces additional flexibility that may be desirable. Because the motion converter described herein is responsive to relative motion between the frame and the deck framework irrespective of whether that relative motion is translation, rotation, or a combination thereof, it is equally applicable to the embodiments of both FIGS. 14 and 15 .
- kinematic equivalents of various components of the motion converter can be used in lieu of the illustrated components.
- belts and pulleys can be used instead of chain 220 and sprockets 170, 192; a notched or toothed belt and mating gears can also be substituted for the chain and sprockets; a roller and a track with a high coefficient of friction (to prevent roller skidding) might be substituted for the gear 124 and rack 102.
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- Health & Medical Sciences (AREA)
- Nursing (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Invalid Beds And Related Equipment (AREA)
- Devices For Medical Bathing And Washing (AREA)
- Floor Finish (AREA)
Description
- The subject matter described herein relates to articulable supports, such as hospital beds, and particularly to a support having a deck framework, a deck panel connected to the framework and a motion converter for coordinating a translational motion of the panel with rotation and/or longitudinal translation of the framework.
- The teachings of the earlier application are presented in the context of a bed having three actuators for controlling motions of the upper body section. One of these actuators controls the parallel translation. The other two are operated to rotate the upper body section while concurrently translating it longitudinally, to rotate the upper body section without imparting any longitudinal translation, or to translate the upper body section longitudinally without imparting any rotation. Although such a system may be desirable in a prototype or experimental bed to allow maximum flexibility of articulation during testing and development, it is envisioned that beds produced for commercial sale will include fewer actuators for the upper body section. Accordingly, the application also describes a bed with a simplified kinematic configuration having a single upper body section actuator and a dual rack and pinion. In operation the actuator extends or retracts to translate the upper body section longitudinally while changing its angular orientation. At the same time the dual rack and pinion effects the desired parallel translation of the upper body deck panel in response to the translation and orientation of the upper body section.
- Notwithstanding the merits of the simplified kinematics and dual rack and pinion described in the earlier application, applicants continue to pursue additional innovations which may lead to improved performance, increased reliability and reduced cost.
-
EP 2186497 filed on November 9, 2009 and entitled "Anthropometrically Governed Occupant Support" describes an articulable support, such as a hospital bed, whose articulation depends at least in part on anthropometric considerations. The application discloses a mode of operation in which rotation of a bed upper body section is accompanied by longitudinal translation of the upper body section and "parallel translation" of an upper body deck panel. The application defines parallel translation as translation of the deck panel in a direction parallel to the existing angular orientation of the upper body section. - The invention is defined by the claims.
- The foregoing and other features of the occupant support described herein will become more apparent from the following detailed description and the accompanying drawings in which:
-
FIG. 1 is a schematic, side elevation view of a bed of the type used in hospitals and other health care facilities. -
FIG. 2 is a perspective views of a bed structure as described herein with a frame and an upper body deck section, the deck section being shown at a horizontal angular orientation relative to the frame. -
FIG. 3 is a view similar to that ofFIG. 2 but with the deck section at an angular orientation of about 65 degrees relative to the frame. -
FIG. 4 is a closer view of a portion ofFIG. 3 showing, among other things, a gear rack, a split gear housing positioned at one end of the gear rack, and the lower extremity of the deck section and also having part of a deck section rail broken away to reveal a chain and a chain housing inside the rail. -
FIG. 5 is a view of the gear rack seen inFIG. 4 but with a slide rail component of the gear rack broken away, with the gear housing at the other end of the gear rack and with certain elements, such as the deck section and one side of the split gear housing, removed. -
FIG. 6 is a cross sectional view taken indirection 6--6 ofFIG. 2 . -
FIGS. 7 and8 are exploded views showing components of the bed structure. -
FIG. 9-10 are perspective views with selected components removed or broken away to reveal components such as a sprocket, the drive chain and a slider. -
FIG. 11 is a cross sectional view taken indirection 11--11 ofFIG. 10 showing the slider ofFIGS 9-10 in relation to a rail portion of the upper body deck section, a chain housing and a deck panel drive lug. -
FIG. 12 is a perspective view showing a second slider in relation to the rail portion of the upper body deck section and a deck panel drive lug. -
FIG. 13 is a side elavation view of a lift chain. -
FIG. 14 is a schematic, side elevation view of a bed structure having a nontranslatable joint between a compression link and an elevatable frame of the bed. -
FIG. 15A - 15D are views similar to that ofFIG. 14 showing the results of various modes of motion in an embodiment in which the joint between the compression link and the elevatable frame is longitudinally translatable. -
FIGS. 1-3 show ahospital bed 10 extending longitudinally from ahead end 12 to afoot end 14 and laterally from aleft side 16 to aright side 18.FIGS. 1-2 also show a longitudinally extendingcenterline 22. The bed structure includes abase frame 26 and anelevatable frame 28 connected to the base frame by foldinglinks 30. The bed also includes four deck sections:upper body section 34,seat section 36,thigh section 38 andcalf section 40, all connected to the elevatable frame. The upperbody deck section 34 includes aframework 50 comprising left and righthollow rails upper beam 56 and alower beam 58. First andsecond rail slots mounting bracket 64. Theframework 50 is moveably connected toelevatable frame 28 so that the framework is longitudinally translatable relative to the elevatable frame and is also rotatable aboutpivot axis 70.Deck section 34 also includes a deck panel 72 (shown in phantom) moveably connected to theframework 50. In particular,panel 72 is translatable relative to the framework in directions P1, P2 parallel to the angular orientation α of the framework. This translation is the parallel translation referred to in the application summarized in the "Background" section of this application. - The bed also includes a pair of
compression links 74 each having aframe end 76 pivotably connected to the elevatable frame at aframe joint 78 and adeck end 82 pivotably connected to the deck framework at adeck joint 84. In the embodiment illustrated inFIGS. 1-3 frame joint 78 is not translatable relative to the frame, however in an alternate embodiment (FIG. 15 )joint 78 is longitudinally translatable relative to the frame. - The bed also includes a drive system which includes an
actuator 90 having adeck end 92 connected to upperbody deck framework 50 and agrounded end 94 connected to a suitable mechanical ground, such aselevatable frame 28. The drive system also includes a motion converter, indicated generally by reference numeral 100, for translatingpanel 72 relative to the deck framework in response to at least one of: a) relative translation between the deck framework and the frame, and b) relative rotation of the deck framework and the frame aboutaxis 70. The illustrated embodiment includes both left and rightmotion converter units -
FIGS. 4-8 show components and construction of one of the motion converter units in more detail. The motion converter includes agear rack 102 affixed toelevatable frame 28. Alternatively, the gear rack may be considered to be a part of the elevatable frame. The illustrated rack comprises a singlepiece slide rail 104 screwed to the frame and arack plate 106 screwed topedestals 108 at each end of the slide rail. Aslot 110 extends along the slide rail between the pedestals. The slide rail has laterally inboard andoutboard sides shoulder 116. The rack plate includesopenings 120 for receiving a gear tooth. The openings have a profile that conforms to the profile of the gear teeth. - The motion converter also includes a
primary gear 124 in mesh with the rack plate. The gear has astub shaft 126 extending laterally away frombed centerline 22. A pair oflugs 128 projects laterally from the shaft. Asplit gear housing 130 has a rectangularlyshaped opening 132 extending through itsbase 134, acavity 136 inside the base and atail 138 projecting from the base. The tail nests snugly inslide rail slot 110, and the opening 132 embraces and fits snugly aroundrack plate 106. Aninternal plate 140 resides in the cavity.Screws 142 extend through abearing plate 144 and abacking plate 146 and into theinternal plate 140 to slidingly clamp the housing to the slide rail with the bearing plate abuttingrail shoulder 116. The primary gear is rotatably mounted insidegear housing 130 by way of inboard andoutboard gear bushings pivot axle 158. The pivot axle also extends throughholes 162 in therail mounting bracket 64 to connect the primary gear to the deck framework.Bearings 164 nest in theholes 162 and circumscribepivot axle 158. - Referring additionally to
FIGS. 9-11 , The motion converter also includes a deck panel rotary drive element such as apanel drive sprocket 170. The sprocket resides inside achain housing 172 located adjacent to and outboard of thegear housing 130. The sprocket is rotatably mounted onpivot axle 158 by way ofoutboard gear bushing 156. The sprocket has astub shaft 174 extending laterally towardbed centerline 22.Notches 176 at the inboard tip of the stub shaft mate withlugs 128 on the primary gear stub shaft to rotatably connect the sprocket to the primary gear. The sprocket and the primary gear are thus coaxial and mutually corotatable. In the illustrated embodiment the pitch diameters of the primary gear and the sprocket are 37.0 and 42.6 mm respectively. Accordingly, the primary gear and sprocket exhibit a non-unity drive ratio, specifically a drive ratio of about 1.15. - The
chain housing 172 extends into the hollow interior of the framework (i.e. into rail 52). The chain housing includes an internal track orledge 182, ashoulder 184, and anelongated slot 186 that registers withfirst slot 60 in the framework rail. Anidler sprocket 192 is rotatably mounted inside the chain housing at itsremote end 194. Because the chain housing is stationary with respect to thedeck framework 50, the idler can be considered to be mounted on the framework. - A
slider 200 includes aslide link 202 translatably supported on housinginternal track 182, and aslide block 204 bolted to the slide link. The slide link has aledge 206 that abutschain housing shoulder 184 to trap the slide link in thechain housing 172. The slide block includes ahead portion 208 that overlies the top offramework rail 50 on either side offirst rail slot 60 and aneck portion 210 that projects through the rail slot and extends to the slide link. The slider also includes adrive lug 218 projecting from the slide block. The drive lug is connected todeck panel 72, thereby connecting the slider to the panel. - Referring to
FIG. 12 , asecond slider 212 comprises asecond slide block 214 having ahead portion 226 and aneck portion 228. The second slider also includes aretainer plate 230.Head portion 226 ofslide block 214 overlies the top offramework rail 52 on either side ofsecond rail slot 62.Neck portion 228 projects throughrail slot 62 and extends to the retainer plate. The slide block and retainer plate are bolted together so that the lateral sides of the retainer plate reside under the interior offramework rail 52 on either side ofsecond rail slot 62 and so that the slider can slide longitudinally along the length of the slot. Adrive lug 218 is connected todeck panel 72, thereby connecting the slider to the panel. - A
roller chain 220, loops around eachsprocket slide link 202, thereby also connecting the chain to thedeck panel 72. The chain is a linear or translatable drive element insofar as the part of the chain that extends linearly between the sprockets translates in direction P1 or P2 during operation of the drive system. Other kinematically equivalent devices could be used in lieu ofroller chain 220. For example, a lift chain, one example of which is seen inFIG. 13 , could serve as a translatable drive element. - By virtue of the
sprockets chain 220 andslider 200, the primary gear is operatively connected to thedeck panel 72. - In operation,
actuator 90 extends and pushesframework beam 58 longitudinally toward thehead end 12 of the bed. Thecompression link 74 rotates clockwise to change the angular orientation α of the upper body deck framework. The longitudinal translation of the framework relative to the elevatable frame causesprimary gear 124 to rotate in a clockwise direction as seen inFIGS. 5 ,8 ,9 and10 . The primary gear drives thepanel drive sprocket 170 in the same rotational sense. The sprocket drives the chain which acts onslider 200 to translatedeck panel 72 in direction P1 relative todeck framework 50. Retraction of the actuator reverses the above described motion to translate the deck panel in direction P2. - During operation, the kinematic interaction between the
gear rack 102 and theprimary gear 124 serves as a means for converting the relative translation and/or rotation between the deck framework and the elevatable frame to a rotary motion ofprimary gear 124. The kinematic interaction betweensprocket 170 andchain 220 serves as a means for converting the rotary motion to a translational motion. Theslider 200 and lug 218 serve as a means for conveying the translational motion of the chain to the panel. -
FIG. 14 is a simple schematic view showing the kinematic relationship of theactuator 90,elevatable frame 28,deck framework 50 andcompression link 74 of the above described bed structure. Joint 78, as previously noted, is non-translatable relative to frame 28. As indicated inFIG. 14 , operation ofactuator 90 causesdeck panel 72 to translate longitudinally relative to the elevatable frame by a distance D and to rotate relative to the elevatable frame through an angle β. In an alternative embodiment, seen inFIG. 15 , joint 78 is longitudinally translatable relative to the frame by the action ofsecond actuator 222. Depending on how the actions ofactuators deck framework 50 can be translated longitudinally relative to theelevatable frame 28 without any rotation of the framework (FIG. 15B ) rotated relative to the elevatable frame without any translation (FIG. 15C ) or rotated and translated as in the first embodiment (FIG. 15D ). Although the inclusion ofsecond actuator 222 introduces additional complexity, it also introduces additional flexibility that may be desirable. Because the motion converter described herein is responsive to relative motion between the frame and the deck framework irrespective of whether that relative motion is translation, rotation, or a combination thereof, it is equally applicable to the embodiments of bothFIGS. 14 and15 . - It will be appreciated that kinematic equivalents of various components of the motion converter can be used in lieu of the illustrated components. For example belts and pulleys can be used instead of
chain 220 andsprockets gear 124 andrack 102.
Claims (6)
- A bed structure (10) comprising:a frame (28);a deck framework (50) movably connected to the frame (28);a panel (72) movably connected to the deck framework (50); anda motion converter (100) for translating the panel (72) relative to the deck framework (50) in response to at least one of:the bed structure (10) being characterised in that the motion converter (100) comprises:a) relative translation between the deck framework (50) and the frame (28); andb) relative rotation of the deck framework (50) and the frame (28);a) a rack (102) secured to the frame (28);b) a primary gear (124) rotatably mounted on the deck framework (50) and in mesh with the rack (102);c) a panel drive sprocket (170) rotatably mounted on the deck framework (50) coaxially with the primary gear (124);d) an idler sprocket (192) rotatably mounted on the deck framework (50) remote from the panel drive sprocket (170);e) a slider (200) connected to the panel (72); andf) a chain (220) engaged with the panel drive sprocket (170) and the idler (192) and connected to the slider (200).
- The bed structure (10) of claim 1 comprising an actuator (90) extending between the deck framework (50) and a mechanical ground.
- The bed structure (10) of claim 2 wherein the frame serves as the mechanical ground.
- The bed structure (10) of claim 1 comprising a compression link (74) pivotably connected to the frame (28) and the deck framework (50).
- The bed structure (10) of claim 4 wherein the compression link (74) is nontranslatably connected to the frame (28).
- The bed structure (10) of claim 1 comprising:means for converting the relative translation and/or rotation to a rotary motion;means for converting the rotary motion to a translational motion; andmeans for conveying the translational motion to the panel (72).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP17164865.2A EP3210586B1 (en) | 2010-07-09 | 2011-07-08 | Fluid tank receptacle for person support systems |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/833,321 US8516634B2 (en) | 2010-07-09 | 2010-07-09 | Bed structure with a deck section motion converter |
US12/836,606 US9222685B2 (en) | 2010-07-15 | 2010-07-15 | Method and system for controlling evaporative and heat withdrawal performance of an occupant support surface |
US36949910P | 2010-07-30 | 2010-07-30 | |
US36915210P | 2010-07-30 | 2010-07-30 | |
US12/847,337 US8620625B2 (en) | 2010-07-30 | 2010-07-30 | Above bed sensor |
PCT/US2011/043392 WO2012006545A2 (en) | 2010-07-09 | 2011-07-08 | Person support systems, devices, and methods |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17164865.2A Division EP3210586B1 (en) | 2010-07-09 | 2011-07-08 | Fluid tank receptacle for person support systems |
EP17164865.2A Division-Into EP3210586B1 (en) | 2010-07-09 | 2011-07-08 | Fluid tank receptacle for person support systems |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2590610A2 EP2590610A2 (en) | 2013-05-15 |
EP2590610A4 EP2590610A4 (en) | 2015-06-03 |
EP2590610B1 true EP2590610B1 (en) | 2017-05-17 |
Family
ID=45441834
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11804417.1A Active EP2590610B1 (en) | 2010-07-09 | 2011-07-08 | Person support systems, devices, and methods |
EP17164865.2A Active EP3210586B1 (en) | 2010-07-09 | 2011-07-08 | Fluid tank receptacle for person support systems |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17164865.2A Active EP3210586B1 (en) | 2010-07-09 | 2011-07-08 | Fluid tank receptacle for person support systems |
Country Status (4)
Country | Link |
---|---|
EP (2) | EP2590610B1 (en) |
JP (2) | JP5986077B2 (en) |
AU (1) | AU2011274503A1 (en) |
WO (1) | WO2012006545A2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108524141A (en) * | 2018-04-22 | 2018-09-14 | 谢安迪 | A kind of Orthopaedic nursing bed of adjustment posture |
US10489661B1 (en) | 2016-03-08 | 2019-11-26 | Ocuvera LLC | Medical environment monitoring system |
US10600204B1 (en) | 2016-12-28 | 2020-03-24 | Ocuvera | Medical environment bedsore detection and prevention system |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
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US8516634B2 (en) | 2010-07-09 | 2013-08-27 | Hill-Rom Services, Inc. | Bed structure with a deck section motion converter |
CN104688454A (en) * | 2015-03-26 | 2015-06-10 | 上海市第一人民医院 | Full-automatic multifunctional liftable bed board |
EP3367847B1 (en) * | 2016-05-12 | 2019-04-17 | Logicdata Electronic & Software Entwicklungs GmbH | Support panel, bed assembly and mounting method |
PL233484B1 (en) * | 2017-12-18 | 2019-10-31 | Reha Bed Spolka Z Ograniczona Odpowiedzialnoscia | Method for the measuring environmental parameters in bed and the bed, preferably for bedridden parsons |
CN109125877B (en) * | 2018-10-23 | 2020-11-03 | 河南省中医院(河南中医药大学第二附属医院) | Clinical anesthesia branch of academic or vocational study is with supplying medicine anesthesia device |
JP7185561B2 (en) * | 2019-02-27 | 2022-12-07 | パラマウントベッド株式会社 | bed equipment |
US11304866B2 (en) | 2019-04-17 | 2022-04-19 | Hill-Rom Services, Inc. | Head of bed access |
US20220347008A1 (en) * | 2019-07-01 | 2022-11-03 | Georgetown University | Portable folding infant radiant warmer |
US11648162B2 (en) * | 2019-07-31 | 2023-05-16 | Hill-Rom Services, Inc. | Head extension and transport handle system |
CN111388254B (en) * | 2020-03-27 | 2021-03-02 | 吉林大学 | Adjustable midwifery device for medical treatment of gynaecology and obstetrics |
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US3302219A (en) * | 1966-01-14 | 1967-02-07 | Joe F Harris | Hospital bed and lifting and turning device |
US4685159A (en) * | 1985-05-09 | 1987-08-11 | Hans Oetiker | Hospital bed |
NL8800792A (en) * | 1988-03-29 | 1989-10-16 | Redactron Bv | METHOD AND APPARATUS FOR EXTRACTING MOISTURE FROM ONE OR MORE BODIES |
US6978501B2 (en) * | 1995-01-31 | 2005-12-27 | Kci Licensing, Inc. | Bariatric bed apparatus and methods |
ES2133942T3 (en) * | 1995-02-14 | 1999-09-16 | Wet Automotive Systems Ag | HEATED SEAT. |
US5790997A (en) * | 1995-08-04 | 1998-08-11 | Hill-Rom Inc. | Table/chair egress device |
US6282738B1 (en) * | 1998-08-07 | 2001-09-04 | Hill-Rom, Inc. | Ob/Gyn stretcher |
JP2000325405A (en) * | 1999-05-20 | 2000-11-28 | Murata Mach Ltd | Back lifter for erectable bed |
JP2001081652A (en) * | 1999-09-08 | 2001-03-27 | Toyobo Co Ltd | Woven or knitted fabric scarcely giving wet touch |
EP1284708A1 (en) * | 2000-05-27 | 2003-02-26 | Huntleigh Technology Plc | Adjustable platform for a bed |
TW491214U (en) * | 2000-12-12 | 2002-06-11 | Pei-Shiou Huang | Improved shelf for soft drinks |
JP4371750B2 (en) * | 2003-09-19 | 2009-11-25 | パラマウントベッド株式会社 | Bed back raising device |
US7272936B2 (en) * | 2004-12-28 | 2007-09-25 | Steve Feher | Variable temperature cushion and heat pump |
US7865984B2 (en) * | 2007-02-09 | 2011-01-11 | Pedigo Products, Inc. | Safe store oxygen bottle holder |
US7731136B1 (en) * | 2007-03-19 | 2010-06-08 | Cory Chisolm | Combined IV bag and oxygen supporting pole and associated method |
EP2186497B1 (en) * | 2008-11-17 | 2013-05-08 | Hill-Rom Services, Inc. | Anthropometrically governed occupant support |
-
2011
- 2011-07-08 EP EP11804417.1A patent/EP2590610B1/en active Active
- 2011-07-08 AU AU2011274503A patent/AU2011274503A1/en not_active Abandoned
- 2011-07-08 EP EP17164865.2A patent/EP3210586B1/en active Active
- 2011-07-08 JP JP2013518864A patent/JP5986077B2/en active Active
- 2011-07-08 WO PCT/US2011/043392 patent/WO2012006545A2/en active Application Filing
-
2015
- 2015-07-08 JP JP2015136793A patent/JP2015211871A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10489661B1 (en) | 2016-03-08 | 2019-11-26 | Ocuvera LLC | Medical environment monitoring system |
US10600204B1 (en) | 2016-12-28 | 2020-03-24 | Ocuvera | Medical environment bedsore detection and prevention system |
CN108524141A (en) * | 2018-04-22 | 2018-09-14 | 谢安迪 | A kind of Orthopaedic nursing bed of adjustment posture |
Also Published As
Publication number | Publication date |
---|---|
EP3210586B1 (en) | 2019-08-28 |
EP2590610A4 (en) | 2015-06-03 |
JP2015211871A (en) | 2015-11-26 |
JP2013533041A (en) | 2013-08-22 |
EP3210586A1 (en) | 2017-08-30 |
WO2012006545A9 (en) | 2013-04-18 |
WO2012006545A3 (en) | 2013-06-06 |
WO2012006545A2 (en) | 2012-01-12 |
AU2011274503A1 (en) | 2013-01-31 |
EP2590610A2 (en) | 2013-05-15 |
JP5986077B2 (en) | 2016-09-06 |
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